child age 5 can these results and history point to cancer?

Hi all i really need some advice,

my 5 year old has been poorly for a year constant infections, night sweats, bed wetting, fatigue, paleness, occasional rashes even behaviour issues, runny clear fluid out of nose, emotionalness, continous lymph swellings. in sept and oct 2009 she had 2 swellings on her groins behind her lymph nodes they were removed and fluid drained the node was tested and i was never told any issues. She now for the past 6 months has had constant swellings in her neck all down her neck with the right being more then the left im told.  shes down for a tonsil removal 1st week in dec coming as they want to rule out them causing the further lymph swellings.

She has had her blood results back today and im extremley worried
ESR should be im told between 4-12 and its 81!!!!!!
Platelets should be up to 4.00 and they are 4.33.

Can someone please help me